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ByteReader/Writer support for serializing ResourceList.results field

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This commit is contained in:
Phillip Wittrock
2020-04-09 09:23:30 -07:00
parent b1e48a46c7
commit b72db9e783
5 changed files with 683 additions and 396 deletions
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263
kyaml/kio/byteio_readwriter_test.go Normal file
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// Copyright 2019 The Kubernetes Authors.
// SPDX-License-Identifier: Apache-2.0
package kio_test
import (
"bytes"
"strings"
"testing"
"github.com/stretchr/testify/assert"
"sigs.k8s.io/kustomize/kyaml/kio"
)
func TestByteReadWriter(t *testing.T) {
type testCase struct {
name string
err string
input string
expectedOutput string
instance kio.ByteReadWriter
}
testCases := []testCase{
{
name: "round_trip",
input: `
apiVersion: config.kubernetes.io/v1alpha1
kind: ResourceList
items:
- kind: Deployment
spec:
replicas: 1
- kind: Service
spec:
selectors:
foo: bar
`,
expectedOutput: `
apiVersion: config.kubernetes.io/v1alpha1
kind: ResourceList
items:
- kind: Deployment
spec:
replicas: 1
- kind: Service
spec:
selectors:
foo: bar
`,
},
{
name: "function_config",
input: `
apiVersion: config.kubernetes.io/v1alpha1
kind: ResourceList
items:
- kind: Deployment
spec:
replicas: 1
- kind: Service
spec:
selectors:
foo: bar
functionConfig:
a: b # something
`,
expectedOutput: `
apiVersion: config.kubernetes.io/v1alpha1
kind: ResourceList
items:
- kind: Deployment
spec:
replicas: 1
- kind: Service
spec:
selectors:
foo: bar
functionConfig:
a: b # something
`,
},
{
name: "results",
input: `
apiVersion: config.kubernetes.io/v1alpha1
kind: ResourceList
items:
- kind: Deployment
spec:
replicas: 1
- kind: Service
spec:
selectors:
foo: bar
results:
a: b # something
`,
expectedOutput: `
apiVersion: config.kubernetes.io/v1alpha1
kind: ResourceList
items:
- kind: Deployment
spec:
replicas: 1
- kind: Service
spec:
selectors:
foo: bar
results:
a: b # something
`,
},
{
name: "drop_invalid_resource_list_field",
input: `
apiVersion: config.kubernetes.io/v1alpha1
kind: ResourceList
items:
- kind: Deployment
spec:
replicas: 1
- kind: Service
spec:
selectors:
foo: bar
foo:
a: b # something
`,
expectedOutput: `
apiVersion: config.kubernetes.io/v1alpha1
kind: ResourceList
items:
- kind: Deployment
spec:
replicas: 1
- kind: Service
spec:
selectors:
foo: bar
`,
},
{
name: "list",
input: `
apiVersion: v1
kind: List
items:
- kind: Deployment
spec:
replicas: 1
- kind: Service
spec:
selectors:
foo: bar
`,
expectedOutput: `
apiVersion: v1
kind: List
items:
- kind: Deployment
spec:
replicas: 1
- kind: Service
spec:
selectors:
foo: bar
`,
},
{
name: "multiple_documents",
input: `
kind: Deployment
spec:
replicas: 1
---
kind: Service
spec:
selectors:
foo: bar
`,
expectedOutput: `
kind: Deployment
spec:
replicas: 1
---
kind: Service
spec:
selectors:
foo: bar
`,
},
{
name: "keep_annotations",
input: `
kind: Deployment
spec:
replicas: 1
---
kind: Service
spec:
selectors:
foo: bar
`,
expectedOutput: `
kind: Deployment
spec:
replicas: 1
metadata:
annotations:
config.kubernetes.io/index: '0'
---
kind: Service
spec:
selectors:
foo: bar
metadata:
annotations:
config.kubernetes.io/index: '1'
`,
instance: kio.ByteReadWriter{KeepReaderAnnotations: true},
},
}
for i := range testCases {
tc := testCases[i]
t.Run(tc.name, func(t *testing.T) {
var in, out bytes.Buffer
in.WriteString(tc.input)
w := tc.instance
w.Writer = &out
w.Reader = &in
nodes, err := w.Read()
if !assert.NoError(t, err) {
t.FailNow()
}
err = w.Write(nodes)
if !assert.NoError(t, err) {
t.FailNow()
}
if tc.err != "" {
if !assert.EqualError(t, err, tc.err) {
t.FailNow()
}
return
}
if !assert.Equal(t,
strings.TrimSpace(tc.expectedOutput), strings.TrimSpace(out.String())) {
t.FailNow()
}
})
}
}